October weather forecast
San Luis, AZ

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Weather in October

October in San Luis, Arizona heralds a pronounced decrease in high temperatures from 99.7°F (37.6°C) to 88.5°F (31.4°C), indicating the onset of the fall season. As the heat from the summer sun ebbs away, days become more manageable and nights cooler. Minimal rainfall and steady wind conditions bring about a pleasant climate in the city. Dwindling daylight hours signal the imminent arrival of winter. With October, San Luis moves away from the scorching sun and begins to cool, ushering in a new, cooler season.

Temperature

October's onset brings a slight change in high-temperatures, falling from a very hot 99.7°F (37.6°C) in September to a hot 88.5°F (31.4°C). During October, the temperature tends to dip to an average of 69.8°F (21°C) at night.

Humidity

In October, the average relative humidity is 29%.

Rainfall

In San Luis, in October, during 1.2 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In San Luis, Arizona, during the entire year, the rain falls for 25 days and collects up to 2.24" (57mm) of precipitation.

Daylight

In October, the average length of the day is 11h and 22min.
On the first day of October, sunrise is at 6:33 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 5:49 pm MST.

Sunshine

In San Luis, the average sunshine in October is 8.9h.

UV index

The average daily maximum UV index in October is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during October translates into these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

Is it hot during October?

In October, the average high-temperature and low-temperature are 88.5°F (31.4°C) and 69.8°F (21°C) respectively.

What is the average humidity in October?

The average relative humidity in October is 29%.

How much does it rain in October?

In October, the rain falls for 1.2 days. Throughout October, 0.16" (4mm) of precipitation is accumulated.

How many hours of daylight does San Luis have in October?

The average day length in October is 11h and 22min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:33 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 5:49 pm MST.

How long on average sun shines in October?

The average sunshine duration in October is 8.9h.

What is the UV index reading in October?

In San Luis, the average daily maximum UV index in October is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
San Luis, AZ

Average temperature in October - San Luis, AZ
  • Average high temperature in October: 88.5°F

The warmest month (with the highest average high temperature) is July (106.2°F).
The month with the lowest average high temperature is December (67.1°F).

  • Average low temperature in October: 69.8°F

The month with the highest average low temperature is August (86.2°F).
The coldest month (with the lowest average low temperature) is December (50.5°F).

Average pressure in October
San Luis, AZ

Average pressure in October - San Luis, AZ
  • Average pressure in October: 29.86"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.75"Hg).

Average wind speed in October
San Luis, AZ

Average wind speed in October - San Luis, AZ
  • Average wind speed in October: 7mph

The windiest month (with the highest average wind speed) is July (8.5mph).
The calmest month (with the lowest average wind speed) is November (6.7mph).

Average humidity in October
San Luis, AZ

Average humidity in October - San Luis, AZ
  • Average humidity in October: 29%

The month with the highest relative humidity is December (38%).
The month with the lowest relative humidity is June (23%).

Average rainfall in October
San Luis, AZ

Average rainfall in October - San Luis, AZ
  • Average rainfall in October: 0.16"

The wettest month (with the highest rainfall) is July (0.39").
The driest month (with the least rainfall) is May (0").

Average rainfall days in October
San Luis, AZ

Average rainfall days in October - San Luis, AZ
  • Average rainfall days in October: 1.2 days

The month with the highest number of rainy days is July (5.1 days).
The month with the least rainy days is May (0.3 days).

Average daylight in October /
Average sunshine in October
San Luis, AZ

Average daylight in October / Average sunshine in October - San Luis, AZ
  • Average daylight in October: 11h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in October: 8h and 5min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in October
San Luis, AZ

Average sunshine days in October - San Luis, AZ
  • Average sunshine days in October: 29.5 days

The month with the most sunshine days is May (30.4 days).
The month with the least sunshine days is July (24.3 days).

Average UV index in October
San Luis, AZ

Average UV index in October - San Luis, AZ
  • Average UV index in October: 6

The months with the highest UV index are June, July, August and September (UV index 8).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in October
San Luis, AZ

Average cloud cover in October - San Luis, AZ
  • Average cloud cover in October: 7

The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in October
San Luis, AZ

Average visibility in October - San Luis, AZ
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

San Luis, Arizona, USA

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